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(? or ?), v. t.[imp. & p. p.Concentrated; p. pr. & vb. n.Concentrating.] [Pref. con- + L. centrum center. Cf. Concenter.] 1. To bring to, or direct toward, a common center; to unite more closely; to gather into one body, mass, or force; to fix; as, to concentrate rays of light into a focus; to concentrate the attention. (He) concentrated whole force at his own camp. Motley. 2. To increase the strength and diminish the bulk of, as of a liquid or an ore; to intensify, by getting rid of useless material; to condense; as, to concentrate acid by evaporation; to concentrate by washing; -- opposed to dilute. Spirit of vinegar concentrated and reduced to its greatest strength. Arbuthnot. Syn. -- To combine; to condense; to consolidate. Concen"trate (? or ?), v. i.To approach or meet in a common center; to consolidate; as, population tends to concentrate in cities. スポンサード リンク
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